text editor is actually a text editor
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1345f294b8
commit
8b04b275f3
10
Cargo.lock
generated
10
Cargo.lock
generated
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@ -13,9 +13,9 @@ dependencies = [
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[[package]]
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name = "allocator-api2"
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version = "0.2.18"
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version = "0.2.19"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "5c6cb57a04249c6480766f7f7cef5467412af1490f8d1e243141daddada3264f"
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checksum = "611cc2ae7d2e242c457e4be7f97036b8ad9ca152b499f53faf99b1ed8fc2553f"
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[[package]]
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name = "anyhow"
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@ -228,12 +228,12 @@ dependencies = [
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[[package]]
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name = "hbbytecode"
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version = "0.1.0"
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source = "git+https://git.ablecorp.us/AbleOS/holey-bytes.git#29367d8f8bdfc23d8662a74edcecf859285ce265"
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source = "git+https://git.ablecorp.us/AbleOS/holey-bytes.git#65e9f272a85cc9d46c31072af9d0f2bc43ef1217"
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[[package]]
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name = "hblang"
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version = "0.1.0"
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source = "git+https://git.ablecorp.us/AbleOS/holey-bytes.git#29367d8f8bdfc23d8662a74edcecf859285ce265"
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source = "git+https://git.ablecorp.us/AbleOS/holey-bytes.git#65e9f272a85cc9d46c31072af9d0f2bc43ef1217"
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dependencies = [
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"hashbrown 0.15.1",
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"hbbytecode",
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@ -245,7 +245,7 @@ dependencies = [
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[[package]]
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name = "hbvm"
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version = "0.1.0"
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source = "git+https://git.ablecorp.us/AbleOS/holey-bytes.git#29367d8f8bdfc23d8662a74edcecf859285ce265"
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source = "git+https://git.ablecorp.us/AbleOS/holey-bytes.git#65e9f272a85cc9d46c31072af9d0f2bc43ef1217"
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dependencies = [
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"hbbytecode",
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]
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@ -1,13 +1,15 @@
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.{memory, log, string} := @use("../../../../libraries/stn/src/lib.hb")
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.{memory, log, string, math} := @use("../../../../libraries/stn/src/lib.hb")
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render := @use("../../../../libraries/render/src/lib.hb")
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/* expected result: almost-not-trash notepad app
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very jank
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/* expected result: pretty decent notepad app
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slightly jank
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-----------------
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features:
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- basic keys
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- holding support with DAS
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- visible cursor
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- l+r arrow key support
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- proper insertion and deletion
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- shift key support
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*/
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@ -15,12 +17,17 @@ psf := @embed("../../../../consolefonts/tamsyn/10x20r.psf")
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is_shift_pressed := false
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is_ctrl_pressed := false
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is_extended := false
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$initial_delay := 50
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$repeat_delay := 7
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$left_arrow := 0x4B
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$right_arrow := 0x4D
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$up_arrow := 0x48
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$down_arrow := 0x50
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example := fn(): void {
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screen := render.init(true)
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window := render.new_surface(480, 340)
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window := render.new_surface(600, 300)
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font := render.text.font_from_psf2(@bitcast(&psf), false)
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if font == null {
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@ -35,12 +42,10 @@ example := fn(): void {
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bottom := buf + msg_len
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@inline(memory.copy, u8, msg, buf, msg_len)
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cursor := buf + msg_len;
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cursor := bottom
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*cursor = 95
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draw_window(window, font, buf)
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draw_screen(screen, window);
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*cursor = 32
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draw_window(window, font, buf, cursor)
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draw_screen(screen, window)
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memory.outb(96, 238)
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memory.outb(96, 238)
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@ -53,24 +58,35 @@ example := fn(): void {
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loop {
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input := memory.inb(96)
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if input != prev_input {
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if (input & 0x80) != 0 {
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if (input & 0x7F) == current_key {
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current_key = 0
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holding_timer = 0
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} else if input == 0xAA | input == 0xB6 {
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is_shift_pressed = false
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} else if input == 0x9D {
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is_ctrl_pressed = false
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}
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if input == 0xE0 {
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is_extended = true
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} else {
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if input == 0x2A | input == 0x36 {
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is_shift_pressed = true
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} else if input == 0x1D {
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is_ctrl_pressed = true
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if (input & 0x80) != 0 {
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if (input & 0x7F) == current_key {
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current_key = 0
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holding_timer = 0
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} else if input == 0xAA | input == 0xB6 {
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is_shift_pressed = false
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} else if input == 0x9D {
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is_ctrl_pressed = false
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}
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is_extended = false
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} else {
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current_key = input
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holding_timer = 1
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cursor = handle_char(map_keys(current_key), cursor, bottom)
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if is_extended {
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current_key = input
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holding_timer = 1
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cursor = handle_extended_key(input, cursor, bottom, font)
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} else {
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if input == 0x2A | input == 0x36 {
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is_shift_pressed = true
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} else if input == 0x1D {
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is_ctrl_pressed = true
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} else {
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current_key = input
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holding_timer = 1
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cursor = handle_char(map_keys(current_key), cursor, bottom)
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}
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}
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}
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}
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prev_input = input
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@ -80,14 +96,16 @@ example := fn(): void {
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holding_timer += 1
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if holding_timer >= initial_delay {
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cursor = handle_char(map_keys(current_key), cursor, bottom)
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if is_extended {
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cursor = handle_extended_key(current_key, cursor, bottom, font)
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} else {
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cursor = handle_char(map_keys(current_key), cursor, bottom)
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}
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holding_timer = initial_delay - repeat_delay
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}
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};
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*cursor = 95
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draw_window(window, font, buf)
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draw_screen(screen, window);
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*cursor = 32
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}
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draw_window(window, font, buf, cursor)
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draw_screen(screen, window)
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if holding_timer > 0 & current_key != 0 {
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if (memory.inb(96) & 0x80) != 0 {
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@ -96,17 +114,87 @@ example := fn(): void {
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}
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}
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}
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}
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return
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handle_extended_key := fn(scancode: u8, cursor: ^u8, bottom: ^u8, font: render.text.Font): ^u8 {
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if scancode == left_arrow {
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if cursor > bottom {
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return cursor - 1
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}
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} else if scancode == right_arrow {
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if *cursor != 0 {
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return cursor + 1
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}
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}
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return cursor
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}
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padding := 3 * @sizeof(render.Color)
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draw_window := fn(window: render.Surface, font: render.text.Font, buf: ^u8, cursor: ^u8): void {
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render.clear(window, render.light_yellow)
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line := font.height + padding - 1
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render.put_rect(window, .(0, 0), .(window.width - 1, window.height - 1), render.black)
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loop if line >= window.height break else {
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render.put_hline(window, line, padding, window.width - padding, render.yellow)
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line += font.height
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}
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render.put_text(window, font, .(padding, padding), render.black, buf)
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cursor_offset := cursor - buf
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y_pos := padding
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x_pos := padding
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i := 0
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loop if i >= cursor_offset break else {
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if *(buf + i) == 10 {
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y_pos += font.height + font.line_gap
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x_pos = padding
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} else {
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if x_pos + font.width >= window.width - padding {
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y_pos += font.height + font.line_gap
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x_pos = padding - font.width
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}
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x_pos += font.width
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}
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i += 1
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}
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render.put_rect(window, .(x_pos, y_pos), .(1, font.height - 1), render.black)
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}
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draw_screen := fn(screen: render.Surface, window: render.Surface): void {
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render.clear(screen, render.light_blue)
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render.put_surface(screen, window, .(100, 100), false)
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render.sync(screen)
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}
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handle_char := fn(char: u8, cursor: ^u8, bottom: ^u8): ^u8 {
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if char == 0 {
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return cursor
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}
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if is_ctrl_pressed & char == 48 {
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cursor = bottom
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} else if char != 0x8 {
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end := cursor
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loop if *end == 0 break else {
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end += 1
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}
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if cursor < end {
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src := end
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dst := end + 1
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loop if src < cursor break else {
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*dst = *src
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dst -= 1
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src -= 1
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}
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};
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*cursor = char
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return cursor + 1
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} else if char == 0xA {
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@ -115,37 +203,36 @@ handle_char := fn(char: u8, cursor: ^u8, bottom: ^u8): ^u8 {
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*cursor = 92
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return cursor + 1
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} else if cursor > bottom {
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cursor -= 1;
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*cursor = 32
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return cursor
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if cursor == bottom {
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return cursor
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}
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end := cursor
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loop if *end == 0 break else {
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end += 1
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}
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if cursor < end {
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src := cursor
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dst := cursor - 1
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loop if src > end break else {
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*dst = *src
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dst += 1
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src += 1
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}
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return cursor - 1
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} else {
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cursor -= 1;
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*cursor = 32
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return cursor
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}
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}
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return cursor
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}
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map_keys := fn(scancode: u8): u8 {
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if is_shift_pressed {
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return ps2_table[scancode + 0x40]
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}
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return ps2_table[scancode]
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}
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ps2_table := [u8].(0x0, 0x1B, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x30, 0x2D, 0x3D, 0x8, 0x9, 0x71, 0x77, 0x65, 0x72, 0x74, 0x79, 0x75, 0x69, 0x6F, 0x70, 0x5B, 0x5D, 0xA, 0x0, 0x61, 0x73, 0x64, 0x66, 0x67, 0x68, 0x6A, 0x6B, 0x6C, 0x3B, 0x27, 0x60, 0x0, 0x5C, 0x7A, 0x78, 0x63, 0x76, 0x62, 0x6E, 0x6D, 0x2C, 0x2E, 0x2F, 0x0, 0x2A, 0x0, 0x20, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1B, 0x21, 0x40, 0x23, 0x24, 0x25, 0x5E, 0x26, 0x2A, 0x28, 0x29, 0x5F, 0x2B, 0x8, 0x9, 0x51, 0x57, 0x45, 0x52, 0x54, 0x59, 0x55, 0x49, 0x4F, 0x50, 0x7B, 0x7D, 0xA, 0x0, 0x41, 0x53, 0x44, 0x46, 0x47, 0x48, 0x4A, 0x4B, 0x4C, 0x3A, 0x22, 0x7E, 0x0, 0x7C, 0x5A, 0x58, 0x43, 0x56, 0x42, 0x4E, 0x4D, 0x3C, 0x3E, 0x3F, 0x0, 0x0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)
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$padding := 7
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draw_window := fn(window: render.Surface, font: render.text.Font, buf: ^u8): void {
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render.clear(window, render.light_yellow)
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line := font.height + font.line_gap + padding - 1
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render.put_rect(window, .(0, 0), .(window.width - 1, window.height - 1), render.black)
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loop if line >= window.height break else {
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render.put_hline(window, line, padding, window.width - padding, render.yellow)
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line += font.height + font.line_gap
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}
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render.put_text(window, font, .(padding, padding), render.black, buf)
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}
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draw_screen := fn(screen: render.Surface, window: render.Surface): void {
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render.clear(screen, render.light_blue)
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render.put_surface(screen, window, .(100, 100), false)
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render.sync(screen)
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}
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